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9220BGILFT PDF预览

9220BGILFT

更新时间: 2024-02-25 20:32:01
品牌 Logo 应用领域
艾迪悌 - IDT 晶体时钟发生器微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
16页 187K
描述
Programmable RambusTM XDRTM Clock Generator

9220BGILFT 技术参数

是否Rohs认证:符合生命周期:Obsolete
零件包装代码:TSSOP包装说明:4.40 MM, 0.65 MM PITCH, ROHS COMPLIANT, MO-153, TSSOP-28
针数:28Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.71Is Samacsys:N
JESD-30 代码:R-PDSO-G28长度:9.7 mm
端子数量:28最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
主时钟/晶体标称频率:100 MHz认证状态:Not Qualified
座面最大高度:1.2 mm最大供电电压:2.625 V
最小供电电压:2.375 V标称供电电压:2.5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:4.4 mm
uPs/uCs/外围集成电路类型:CLOCK GENERATOR, PROCESSOR SPECIFICBase Number Matches:1

9220BGILFT 数据手册

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DATASHEET  
Programmable RambusTM XDRTM Clock Generator  
ICS9220B  
General Description  
Features  
The ICS9220 clock generator provides Programmable clock • 300 - 700 MHz clock source  
signals to support the Rambus XDRTMmemory subsystem  
2 open-drain differential output drives with short  
and Redwood logic interface. The ICS9220 has been  
optimized for 100MHz reference input that may or may not be  
modulated for spread spectrum. The ICS9220 provides 2  
differential clock pairs in a space saving 28-pin TSSOP  
package and provides an off-the-shelf high-performance  
interface solution.  
term jitter < 40ps  
Spread spectrum compatible  
Reference clock is differential or single-ended  
100MHz  
SMBus programmability for:  
- frequency multiplier  
- output enable  
- operating mode  
Support systems where XDR subsystem is  
asynchronous to other system clocks  
Figure 1 shows the major components of the ICS9220 XDR  
Clock Generator. These include the a PLL, a Bypass  
Multiplexer and two differential output buffers. The outputs  
can be disabled by a logic low on the OE pin. An output is  
enabled by the combination of the OE pin being high, and 1  
in its SMBus Output control register bit.  
2.5V power supply  
The PLL receives a reference clock, CLK_INT/C and outputs  
a clock signal at a frequency equal to the input frequency  
times a multiplier. Table 2 shows the multipliers selectable  
via the SMBus interface. This clock signal is then fed to the  
differentialoutputbufferstodrivetheenabledclocks. Disabled  
outputs are set to Hi-Z. The Bypass mode routes the input  
clock, CLK_INT/C, directly to the differential output buffers,  
bypassing the PLL.  
Up to four ICS9220 devices can be cascaded on the same  
SMBus.Table 3 shows the SMBus addressing and control for  
the four devices.  
Block Diagram  
Pin Configuration  
AVDD2.5  
AGND  
1
2
3
4
5
6
7
8
9
28 VDD2.5  
27 GND  
26 GND  
25 ODCLK_T0  
24 ODCLK_C0  
23 GND  
22 VDD2.5  
21 VDD2.5  
20 GND  
OE  
IREFY  
AGND  
CLK_INT  
CLK_INC  
VDD2.5  
GND  
SMBCLK  
SMBDAT 10  
OE 11  
OE  
RegA  
ODCLK_T0  
BYPASS#/PLL  
ODCLK_C0  
Bypass  
MUX  
OE  
RegB  
ODCLK_T1  
ODCLK_C1  
CLK_INT  
CLK_INC  
19 ODCLK_T1  
18 ODCLK_C1  
17 GND  
PLL  
SMBCLK  
AS1 12  
AS2 13  
16 GND  
BYPASS#/PLL 14  
15 VDD2.5  
SMBDAT  
AS1  
AS2  
28-Pin 4.4mm TSSOP  
IDTTM Programmable RambusTM XDRTMClock Generator  
1427A01/26/10  
1

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